LU-15186 o2iblnd: Default map_on_demand to 1

LU-15186 o2iblnd: Default map_on_demand to 1

On kernels that provide global MR we default to using that exclusively
even if FMR/FastReg is available. This causes an interop issue if the
active side of a connection request has a higher fragment count than
the passive side  because FMR/FastReg may be needed to map the higher
fragment count. We should change the default map_on_demand to 1 so
that FMR/FastReg is used by default. map_on)demand can still be set
to 0 if needed.

Test-Parameters: trivial
Signed-off-by: Chris Horn <chris.horn@hpe.com>
Change-Id: I76010a905f151efbb0b109ae6f5fba6fb7ce1956
Reviewed-on: https://review.whamcloud.com/45431
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alexey Lyashkov <alexey.lyashkov@hpe.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>